Title :
Analysis of magnetostriction effect in ferrite heads
Author :
Maeda, Nobuyuki ; Miura, Michiyori ; Noro, Yoshihiko ; Inada, Kenkichi
Author_Institution :
Image & Media Syst. Lab., Hitachi Ltd., Yokohama, Japan
fDate :
11/1/1995 12:00:00 AM
Abstract :
We made single crystal ferrite heads with various thermal stress by changing the annealing temperature, and we traced the source of the poor performance by experiments. As a result, we revealed that the deterioration of the ferrite permeability near the gap determines, in large part, the operating characteristics of the ferrite head. Considering the result, we developed a calculation method that enables us to estimate the relationship between head characteristics and magnetoelastic effect in ferrite heads
Keywords :
annealing; ferrite devices; magnetic heads; magnetic permeability; magnetic recording; magnetoelastic effects; magnetostriction; thermal stresses; annealing; magnetoelastic effect; magnetostriction; permeability; single crystal ferrite heads; thermal stress; Annealing; Ferrites; Magnetic analysis; Magnetic anisotropy; Magnetic heads; Magnetostriction; Perpendicular magnetic anisotropy; Residual stresses; Temperature; Thermal stresses;
Journal_Title :
Magnetics, IEEE Transactions on
